Spinning and twisting frame for fibrous materials.



T. A. BOYD.

SPINNING AND TWISTING FRAME FOR PIBROUS MATERIALS.

APPLICATION FILED APR. 14, 1909.

1,047,123, Patented Dec. 10, 1912.

3 SHEETS-SHEET 1.

YYITNESSE$ INVENTOR ATTORNEYS coLummA PLANoanAnH C0.,\VASHINGTON, n. c.

. T. A. BOYD. SPINNING AND TWISTINGFRAME FOR FIBROUS MATERIALS.

'APPLIOATION FILED APR.14, 1909.

1,047,123, Patented Dec.. 10, 1912.

3 SHEETSSHBBT 2.

YHTNESSES Z J INVENTOR ATTORNEYS COLUMBIA PLANouRAPH c0.. WASHINGTON, D.c

T. A BOYD. SPINNING AND TWISTING FRAME FOR FIBROUS MATERIALS.

APPLICATION FILED APR. 14, 1909.

1,047,123, Patented Dec. 10, 1912.

3 SHEETS-SHEET 3.

WITNESSES IINVENTOR ATTORNEYS COLUMBIA PLANOGRAPH C0,,WA5H1NGTON. D, c.

THOMAS A. BOYD, OF GLASGOW, SCOTLAND.

SPINNING AND TWISTING FRAME FOR FIBROUS MATERIALS.

Lil 27,123.

Specification of Letters Patent.

Patented Dec. 10,1912.

Application filed April 14, 1909. Serial No. 489,920.

To all whom it may concern Be it known that I, THOMAS ALEXANDER Born, asubject of the King of Great Britain and Ireland, and a resident ofGlasgow, in the-county of Lanark, Scotland, have invented certain newand useful Improvements in Spinning and Twisting Frames for FibrousMaterials, of which the following is a specification.

My improvements refer to spinning and twisting frames for jute, hemp,flax and other fibrous materials in which the pressing rollers forretaining, drawing or delivering the fiber or yarn are made each tosupply two spinning or twisting spindles.

The said improvements consist in the provision of mechanism to open theone end of the said pressing rollers for the purpose of causing thedelivery of the fiber or yarn at that end of the said roller to ceasewhile the fiber or yarn at the other end of the roller continues to bedelivered and spun or twisted.

The improvements also include various descriptions of mechanism for thepurpose described.

The object of my improvements is to facilitate the working of spinningand twisting machines of the kind described and to pr vent waste ofmaterial. In spinning frames both the retaining and the drawing rollermay be opened as above described either separately or in concert. Intwisting frames there is only a delivery roller and it would be openedat either end as required.

In the accompanying drawings Figure 1 is a vertical section, and Fig. 2is a plan of a retaining roller, a pressing retaining roller, pressinglever and weight and also a pair of cam levers to open one or other endof the pressing roller and so cause it to release the fiber at the endopened. Fig. 1 is a detached side view of the cam lever; Figs. 3 and 4are similar views of a modified construction for opening the retainingpressing roller; Figs. 5 and 6 show a construction similar to that ofFigs. 3 and 4:, but combined with means to open the woo-den pressingdrawing roller in concert with the retaining drawing roller; Figs. 7 and8 show a toppressing roller and a delivery roller of a twisting frameand also a pair of levers to open the former.

In carrying out my invention in the construction shown in Figs. 1 and 2,adapted to open and close the pressing roller of an ordinary jutespinning frame at either of its ends, I employ a retaining roller 1, apressing retaining roller 2, a pressing lever 3, and its weight 41:, andalso a stay bar 5, which supports the pressing retaining roller 2. Onthe stay bar 5, between the adjacent pressing retaining rollers 2, llfix a bracket 6, with a stud 7, placed between the retaining roller 1,and its pressing retaining roller 2 and parallel with both. On this stud7, I place a cam lever 8, with a vertical handle 8 and a horizontalcam-shaped member 8 projecting toward and just clear of the end of theaxle of the pressing retaining roller 2. This cam lever 8 is formed atits outer and horizontal end 8 so that when turned on its stud 7 it willforce one end. of pressing retaining roller 2 clear of the retainingroller 1 and thus relieve tl fiber at that end, while the fiber at theother end continues to be delivered to its spinning spindle. \Vhen theworker with her hand grasps the cam lever S to open the pressingretaining roller 2 at one end, she at the same time holds the fiber bymeans of a V-shaped part 9 on the said lever, so that when the roller 2is opened the further delivery of the fiber ceases; When she presses thecam lever 8 forward again at its upper end 8 the pressing retainingroller 2 gets into contact with the retaining roller 1 and the deliveryof the fiber resumes.

The ordinary practice when the thread being spun fails is to remove therove from the retaining and delivery rollers and to replace it again,thus occupying much time and causing waste.

In the construction shown in Figs. 3 and 4, for the same purpose as theforegoing, I employ an ordinary retaining roller 1, pressing retainingroller 2, stay bar 5, pressing lever B, and weight 4. On the axle 2 ofthe pressing retaining roller 2, l hinge at each end a. cam lever 10,projecting forward and over the top of the retaining roller 1. The underside 10 of each of these levers is shaped so that it can be forced downagainst the inner side of the retaining roller shaft 11, and thus itpresses the end of the pressing retaining roller 2 open or out ofcontact with the retaining roller 1, thereby stopping the delivery ofthe fiber at that end.

In the modification, Figs. 5 and (3, in which by one movement the workeropens one end of a retaining roller and its drawing roller thusreleasing the fiber at both ends, I employ a retaining roller 1, apressing retaining roller 2, a pressing lever 3, and weight 4;, and staybar 5 for the said pressing retaining roller 2, also a drawing roller 12and a wooden pressing roller 13, a pressing lever and weight and staybar, all of ordinary make. On the axle 2 of the pressing retainingroller 2, I place a cam lever 14, the same as and acting in the samemanner as the cam lever 10 in the foregoing second construct-ion, withthe difference that I form a horizontal limb 1& on the cam lever 14,projecting inward and at the inner end of the limb 14 I fix a stud 15,and a connecting rod 16, which passes downward and operates a bell cranklever 17 One limb of the bell crank lever 17 acts on the end of the axleof the wooden drawing roller 13, opening it at one end simultaneouslywith its retaining roller 2.

In a fourth construction, Figs. 7 and 8 of my invention, as applied to atwisting frame, I employ an ordinary delivery roller 18, a top roller19, and a top roller stand 20. On the top roller stand 20 I fix at eachend a stud 21 and on each stud a cam crank lever 22, formed so that theworker by turning the said cam lever 22 raises and opens one end of thepressing roller 19, and thus causes the yarn passing through that end ofit to cease delivery.

I claim as my invention 1. In spinning and twisting machines, coactingretaining and pressing rollers adapted to serve two spindles, a pressingdevice common to said pressing rollers and means acting upon the axis ofthe pressing rollers for moving either pressing roller out of operativerelation to its coacting retaining roller without interrupting theoperative relation of the other pressing roller and its coactingretaining roller.

2. In spinning and twisting machines, a pair of retaining rollers and apair of cooperating pressing rollers, a pressing weight common to bothof the latter, in combination with manually controlled lever meansacting upon the axis of the pressing rollers to move either pressingroller out of operative relation to its coacting retaining rollerwithout interrupting the operative relation of the other pressing rollerand its coacting retaining roller.

3. In spinning and twisting machines a pair of retaining rollers and apair of cooperating pressing rollers, in combination with independentmanually operated levers, one for each pressing roller and acting uponthe axis of the pressing rollers whereby either pressing roller may bemoved out of operative relation to its cooperating retaining rollerwithout interrupting the operative relation of the other pressing rollerand its coacting retaining roller.

4. In spinning and twisting machines, a pair of retaining rollers, apair of cooperating pressing rollers, and a common displaceable axis forthe latter, in combination with a pair of independent levers arranged tobear upon said axis one at each end thereof, whereby said axis may bedisplaced to separate said pressing and retaining rollers at either endor at both ends simultaneously.

5. In spinning and twisting machines, a pair of retaining rollers, apair of cooperating pressing rollers, and a common displaceable axis forthe latter, in combination with a presser element interposed between andcommon to said pressing rollers and a pair of independent leversarranged to bear upon said axis one at each end. thereof, whereby saidaxis may be displaced to separate said pressing and retaining rollers ateither end or at both ends simultaneously.

6. In spinning and twisting machines, a pair of retaining rollers, apair of coiiperating pressing rollers, and a common displaceable axisfor the latter, in, combination with a pair of independent levers a1.anged to bear upon said axis one at each end thereof, whereby said axismay be displaced to separate said pressing and retaining rollers ateither end or at both ends simultaneously, together with means carriedby said levers for holding the thread in the open position of thepressing roller.

7 In spinning and twisting machines, a pair of retaining rollers, a pairof cooperating pressing rollers, a shaft common to the latter and slidebearings for the opposite ends of said shaft, a presser element engagingsaid shaft at a point between said bearings, in combination withindependent levers at the opposite ends of said shaft for displacing thelatter at either end or at both ends simultaneously.

8. In spinning and twisting machines, a. pair of retaining rollers, apair of cooperating pressing rollers, a shaft common to the latter andslide bearings for the oppos1te ends of said shaft, a presser elementengaging said shaft at a point between said bearings, in combinationwith independent levers at the opposite ends of said shaft fordisplacing the latter at either end or at both ends simultaneously,together with means carried by said levers for holding the thread in theopen position of the rollers.

In testimony whereof I have signed my name to this specification, in thepresence of two subscribing witnesses.

THOMAS A. BOYD.

Witnesses WALTER Annn, HUBER'I HowsoN.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. C.

